Well-drilling bit



F. GIERSE.

WELL DRILUNG BIT.

vIIPPLIIJATION FILED MAY 5,1920.'

1,430,072, Pamdsept. 26, 1922.

IN VEN TOR.

Patented Sept. 26, 1922.

" UNITED "sTArES,

A:FRED GIERSE, 0F BEAUMONT, TEXAS.

WELL-DRILLING BIT.

Application' led May 5, 1920. Serial No. 379,125.

To ZZ whom t may concern.'

Be it knownthat I, FRED Ginnsn, citizen of the United States, residing at Beaumont, in the county of Jefferson and State of Texas, have invented certain new and useful Improvements in W ell-Drilling Bits; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to ne'w and useful improvements in drilling bits and more particularly to a bit especially adapted for well drilling, the main object of the present invention bein the provision of a drilling bit used in dril ing wells such as oil,l gas and water wells and is so constructed lthat itisparticularly adapted for drilling through clay or what is commonly known as gumbo for cutting the material into lline particles so that it can be readily removed from the well being drilled through the means of water pressure or the like.

Another object of the present invention is the provision of a drilling bit, the cutting edges of which are so arranged and provided with suitable 'guides whereby the drilling bit will work in a straight line perpendicular to the `earths surface and thus prevent, the bit from moving out of its line of travel so l thatvwhen the casing of \the well is set or removed, this operation can be carried out with very little trouble. y

A further object of the invention is the provision of a drilling bit having in connection therewith suitable means for supplying.

the same with water or the like to 'remove the particles of earthafter they have been crushed, up between cutting edges so as to thus prevent any clogging vot the cutting V edges bythe accumulation of unnecessary material around theA drilling bit. f

With the above and lother objects in view, the'invention Aconsists in the novel features and'construction, the combination and ar! rangement of parts hereinafter more fully set forth, pointed out inthe claims and shown in the accompanying drawings, in which- Figure I is a side elevation of a `drilling bit constructed in accordance withmy inven tion Figure II is a similar view takenI at right angles to the illustration in Figure 1 Figure III is a vertical, sectional view, taken on the line'III-III of Figure I,

Figure IV is a bottom plan viewJ Figure V isatop plan view, and

Figure-VI is a transverse sectional view ,taken on the line VI-VI of Figure I.

In the construction of my improved bit, I provide a central body member, generally indicated by the numeral 1, the outer end of .which is somewhat enlarged as shown at 2 and provided with screw threads 3, whereby the bit can be readily attached toa sleeve, pipe coupling or the like and readily re moved should the occasion demand. Upon each side of the central body member 1, at a point just below the enlarged portion 2, outwardly projecting Webs 4 are formed up; on diametrically opposite sides of the body, the outer edges of said webs terminating in suitable cutting blades 5, the outer -ends of which are arranged-in spacedrelation, as is clearly illustrated in Figures IV and V, and upon rotation of the bit, follow .each

, other in a cuttingcircle. The cutting blades 'of the blades 7, together with the blades 5.

These blades 7 are also provided with suitable guide wings 8 whereby the material 95 which has been cut by the blades 7 will be guided upwardly toward suitable removing means.

The lower end of .the body member 1 is provided with a 'guide cutter, indicated by 100 the numeral 9, which is provided With two cutting edges and is formed by having opposite sides'of the body 1 curved atl its lower end to provide the oppositely disposed cutting edges 10. This guide cutter 105 9 penetrates the earth advance of the cutters 7 and 5 and cu s a circle in the earth substantially vsmaller than the cut# ting blades 7. .The material which is removed by the cutting edges `10 is forced up- 110 wardly between the guides 8 and upon the downward movement of the bit, the blades 7 will cut and remove the material in a. circle slightly greater than the circle cut by the member 9 and as' the bit advances into the earth, the cutting blades 5 will then begin to operate upon the earth and cut a circle slightly vlarger than Athe circle which is aroundy the drill bit.

cut by'the blades 5, being v.of the required diameter of the well being drilled.

In order to remove the pulverized ma-A terial from the Well being drilled, suitable pipes 11 are provided and arranged upon opposite sides of the body member 1 between the webs 4 and securely retained in position by means of the clamp 12. The clamp 12, as herein illustrated, is U-shaped in form and adapted to embrace the pipe 6, the ends of said clamp having suitable nuts 13, threaded thereon for engaging a washer plate 14, mounted upon theends of the clamp 12 whereby the clamp is securely tightened against the pipes 11 to retain them in their proper relation to the body member 1.

The upper ends of the pipes 11 are fitted -into suitable openings 15 arranged within the enlarged portion 2.0i the body 1 and as the portion 2 is connected with a sleeve or pipe coupling, the pipes 11 will be arranged in communication with this sleeve, whereby water may be introduced to the drill bit for conveying the material from around the bit up through the sleeve and thus prevent the accumulation of the pulverizedmaterial `Itwill be noted that the lower ends of these pipes 11 extend downwardly -to a point below the upper ends of the guide members 8 so that the loose materia-l which is cut and pulverized by the cutting edges 7 and 10 can be readily washed up through these pipes 11 so as to keep the cutting edges clear from the accumulated material.

From the. above description, taken in connection with the accompanying drawings, it will be readily apparent that I have provided a well drilling bit which is particularly adapted for drilling in clay or other earth material of this character whereby the material will be thoroughly pulver.-

ized and removed from around the bits asv soon as it has been pulverized to the required extent. It will also be notedv that by providing a plurality of cutting blades arranged so that a plurality of circles of various diameters is cut into the earth as the bit advances, the earth will be more thoroughly pulverized and cut into smaller particles than by having the cutting blades arranged so that they all descend within the same diameter. As stated heretofore, the guide member 9 with its cutting blades 10 cuts a small hole in the earth as the ldrill bit advances, which forms a guide for rality of cutting blades formed on the body adjacent the guide cutter, a second series of cutting blades formed on the body above the first series and disposed at an angle with respect thereto, conveyor pipes secured to the body and having communication with spaces between the cutting blades of the first series whereby to remove the material after' being acted upon by the blades.

2. A drill bit of the classi described, including a central body portion having a guide cutter formed at its lower end, a plu rality of cutting blades formed on the body adjacent the guide cutter, a second series of cutting blades formed on the body above the first series and disposed -at an angle withrespect thereto, conveying pipes dis-.- posed upon opposite sides of the body for conveying the material acted upon by the cut-ters away from the bit, a U-shaped clamp adapted to embrace the pipes and body for retaining said pipes in position.

3. A drilling bit including a plurality ofV cutting blades, a second series of blades arranged above the first series and adapted to cut a larger circle than the irst series and conveyer pipes having communication with spaces between the cutting blades of the first series whereby to remove the material after being acted upon by the blades.

In testimony whereof I have aliiXed my signature.

FRE-D Granen. 

